Treshold Detectors
A threshold detector is a device that outputs a TTL/ RS-485/LVPECL/ECL compatible signal when the input RF signal level exceeds a preset threshold. Typically, a threshold detector circuit consists of a diode-based RF detector, precision integrated circuit operational amplifier, comparator, and a temperature compensated voltage reference.
Threshold detectors are available with fixed or adjustable threshold level options. In the case of adjustable threshold detectors, the preset threshold value can be adjustable by an external resistor or voltage control. These detectors are ideal for use in amplifier input & output protection, wireless receiver input protection, channel activity monitoring, excessive VSWR indicator, RF pulse detection & triggering, gain switch control, test & measurement, electronic warfare, AM noise measurement, radar, military, space applications.
Important Parameters when Looking for Threshold Detectors:
- Operating Frequency: It is the operating frequency range for which the device is fully functional and provides the best performance.
- Input Power Handling: It represents the maximum input RF power level that can be handled by the threshold detector.
- Response Time: This represents the time taken by the threshold detector to produce an output signal when the input RF signal level exceeds the threshold value.
- Threshold Detector Type: It can be fixed or adjustable
- Threshold Control: The threshold detector may use resistor control or voltage control for threshold level setting.
- Logic Output: Represents output level of the detector; it can be a TTL/ Rs-485/LVPECL/ ECL.
everything RF lists Threshold Detectors from the leading manufacturers. Use the parametric search tools to narrow down on products based on your requirement. Once you find parts that meet your specification, download the data sheet, compare products and request quotations. Inquiries sent via everything RF are directed to the manufacturers who get back to you with a quote or information.
